diff --git a/src/app.js b/src/app.js
index 0d15e7b..194bf8a 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1 +1,65 @@
-// write code here
+const fs = require('fs');
+const path = require('path');
+
+function move() {
+  if (process.argv.slice(2).length !== 2) {
+    // eslint-disable-next-line no-console
+    console.error(
+      'Wrong number of arguments is supplied, should pass 2 arguments',
+    );
+
+    return;
+  }
+
+  const [sourceFile, destinationFile] = process.argv.slice(2);
+
+  if (!fs.existsSync(sourceFile)) {
+    // eslint-disable-next-line no-console
+    console.error('Non-existent source file');
+
+    return;
+  }
+
+  const dirName = path.dirname(destinationFile);
+
+  if (!fs.existsSync(dirName)) {
+    // eslint-disable-next-line no-console
+    console.error('Destination directory does not exist');
+
+    return;
+  }
+
+  const normalizedSource = path.resolve(sourceFile);
+  const normalizedDest = path.resolve(destinationFile);
+
+  if (normalizedSource === normalizedDest) {
+    return;
+  }
+
+  if (
+    fs.existsSync(normalizedDest) &&
+    fs.statSync(normalizedDest).isDirectory()
+  ) {
+    const newFilePath = path.join(normalizedDest, path.basename(sourceFile));
+
+    fs.renameSync(sourceFile, newFilePath);
+
+    return;
+  }
+
+  if (destinationFile.endsWith(path.sep)) {
+    const newFilePath = path.join(normalizedDest, path.basename(sourceFile));
+
+    fs.renameSync(sourceFile, newFilePath);
+
+    return;
+  }
+
+  fs.renameSync(sourceFile, normalizedDest);
+}
+
+move();
+
+module.exports = {
+  move,
+};